Party figures have also complained of a "chaotic" presentation of the plan.
It came as Ms Lamont used her speech at Labour's annual conference in Manchester to contrast what she argued was Scottish Labour's honesty on the issue with the SNP.
Labour MPs have expressed concerns over Johann Lamont's public spending review, warning it could alienate the middle classes the party needs to win back.
Party figures have also complained of a "chaotic" presentation of the plan.
It came as Ms Lamont used her speech at Labour's annual conference in Manchester to contrast what she argued was Scottish Labour's honesty on the issue with the SNP.
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